Embla EB Counter Gear Set 28T plus 14T Pulley - HI0304130 by HIROBO  [HI0304130]

Counter gear set for Embla EB (28T with 14T pulley)

Catalogued as HIROBO HI0304130, this counter gear set is designed for Embla EB-series helicopters. The assembly combines a 28-tooth counter gear and a 14-tooth pulley to route rotation within the drivetrain, acting as a like-for-like replacement when the original gear or pulley is worn.

Its function centers on transferring torque and establishing correct gear mesh: the counter gear sets rotational timing while the pulley links to the transmission line. On fitting, make sure mating gears are aligned and rotate freely, check mesh clearance to avoid binding, and confirm the pulley is correctly seated before final clamping.

When tuning, proceed in small steps to adjust mesh, then spin the system at low power to verify smooth operation. This prevents early wear and helps maintain acceptable noise and backlash for consistent helicopter performance.